[sr-dev] New feature: #!ifexp - conditional preprocessor blocks

James Browne james at frideo.com
Fri Sep 23 17:35:41 CEST 2022


This is what I mentioned in the recent advanced training, so thanks
for getting it done.

James

On Thu, 15 Sept 2022 at 10:21, Alex Balashov <abalashov at evaristesys.com> wrote:
>
> This is very exciting news - thank you Daniel!
>
> > On Sep 15, 2022, at 5:37 AM, Daniel-Constantin Mierla <miconda at gmail.com> wrote:
> >
> > Hello,
> >
> > a new feature has landed to Kamailio devel version, bringing in more
> > flexibility for preprocessing of the kamailio.cfg file.
> >
> > It is about #!ifexp, which allows to evaluate an expression created with
> > defined IDs, string and number values. Based on evaluation result, being
> > true or false, parts of the config file can be enabled or disabled.
> >
> > An extensive number of operators can be used in expressions, such as: +,
> > -, *, /, ==, !=, <, >, <=, >=, ||, &&, etc. The evaluation is done using
> > snexpr (https://github.com/miconda/snexpr), which was embedded inside
> > Kamailio code.
> >
> > Here are some simple kamailio.cfg examples:
> >
> > #!ifexp KAMAILIO_VERSION >= 5006000
> > loadmodule "tlsa.so"
> > #!else
> > loadmodule "tls.so"
> > #!endif
> >
> > #!ifexp MOD_xlog && (OS_NAME == "darwin")
> > xlog("running on MacOS\n");
> > #!endif
> >
> > Documentation and more examples can be found on the wiki portal at:
> >
> >   - https://www.kamailio.org/wikidocs/cookbooks/devel/core/#ifexp
> >
> > Testing would be appreciated, feedback can be addressed to sr-users
> > mailing list!
> >
> > Cheers,
> > Daniel
> >
> > --
> > Daniel-Constantin Mierla -- www.asipto.com
> > www.twitter.com/miconda -- www.linkedin.com/in/miconda
> >
> >
> > _______________________________________________
> > Kamailio (SER) - Development Mailing List
> > sr-dev at lists.kamailio.org
> > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-dev
>
> --
> Alex Balashov | Principal | Evariste Systems LLC
>
> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>
>
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